,includingscotlandyard'snumber two, assistant commissioner john yates. >> we in the police service are truly accountable. those of us who take on the most difficult jobs clearly have to stand up and be counted when things go wrong. >> reporter: that was on the heels of his boss's resignation last night. commissioner paul stevenson, the head of scotland yard. and there have also now been at least ten arrests. the latest, rebekah brooks, the former chief executive of murdoch's british media holdings. she showed up in a prearranged appointment with police on sunday, and was subsequently held and questioned for nine hours before being released on bail. all of this is putting increasing pressure on the murdoch family. are you put murdoch, his son james and rebekah brooks are expected to appear before a government committee tomorrow to answer questions about the scandal. kurt gregory, nbc news. >> and there is another late development in this story. "the guardian" newspaper reports that london is examining a computer found in a bag throne into a trash can in an underground parking garage

sunday in connectionwithscotlandyards'investigation into the allegations of hacking and bribery. federal authorities have made arrests in at least three states in connection with the investigation of a computer hacking group that calls itself anonymous. among those arrests is a contract ploy of at&t who's accused of using his access to acquire information and post it online in file sharing sites. >>> now to the hot weather, it's stirred up some storms across the region. doug's in the weather center with a look at what neighbors are getting hit and at this extreme heat that's only going to get worse. >> it's going to get a lot worse out is there, jim. we have high temperatures that reach 97 degrees in the district so far. 94 with a heat index of 100. some areas are getting relief. most of those in maryland, now even parts of virginia starting to see some relief in the form of a thunderstorm warning. this is for washington county into maryland. frederick county into maryland as well as jefferson county, west virginia as well as louden county, northwestern portions of louden county

, in london. >> more than 4,000 telephone hacking victims have been identifiedbyscotlandyard.>>> families of the victims of the london transit bombings also are thought to have had their cell phones hacked by investigators for that paper, "the news of the world." those families were absorbing that news today as they marked the sixth anniversary of that terror attack. they got together in hyde park for a service at the memorial that honors the 52 victims. there are 52 steel pillars, each one inscribed with the name of a victim. one father says he thinks about his murdered son every day. >> it does become easier to handle, but it never goes away. it's one of those things that you know is going to be with you for the rest of your life. >> reporter: on july 7th, 2005, four suicide bombers attacked three subway trains and a bus. his son phillip was killed in the bus attack. >>> the transportation security administration is under scrutiny again tonight after one passenger claims she was disnatured against because of her curly hair. she was at sea-tac airport and was pulled aside by a tsa office